Transformation of the drug ibuprofen by<i>Priestia megaterium</i>: Reversible glycosylation and generation of hydroxylated metabolites
Abstract As one of the most-consumed drugs worldwide, ibuprofen (IBU) reaches the environment in considerable amounts as environmental pollutant, necessitating studies of its further biotransformation as potential removal mechanism. Therefore, we screened bacteria with known capabilities to degrade aromatic environmental pollutants, belonging to the generaBacillus,Priestia(formerly alsoBacillus)Paenibacillus,Mycobacterium, andCupriavidus, for their ability to transform ibuprofen. We identified five transformation products, namely 2-hydroxyibuprofen, carboxyibuprofen, ibuprofen pyranoside, 2-hydroxyibuprofen pyranoside, and 4-carboxy-α-methylbenzene-acetic acid. Based on our screening results, we focused on ibuprofen biotransformation byPriestia megateriumSBUG 518 with regard to structure of transformation products and bacterial physiology. Biotransformation reactions by P. megaterium involved (A) the hydroxylation of the isobutyl side chain at two positions, and (B) conjugate formation via esterification with a sugar molecule of the carboxylic group of ibuprofen and an ibuprofen hydroxylation product. Glycosylation seems to be a detoxification process, since the ibuprofen conjugate (ibuprofen pyranoside) was considerably less toxic than the parent compound toP. megateriumSBUG 518. Based on proteome profile changes and inhibition assays, cytochrome P450 systems are likely crucial for ibuprofen transformation inP. megateriumSBUG 518. The toxic effect of ibuprofen appears to be caused by interference of the drug with different physiological pathways, including especially sporulation, as well as amino acid and fatty acid metabolism.Importance Ibuprofen is a highly consumed drug, and, as it reaches the environment in high quantities, also an environmental pollutant. It is therefore of great interest how microorganisms transform this drug and react to it. Here, we screened several bacteria for their ability to transform ibuprofen.Priestia megateriumSBUG 518 emerged as highly capable and was therefore studied in greater detail. We show thatP. megateriumtransforms ibuprofen via two main pathways, hydrolyzation and reversible conjugation. These pathways bear resemblance to those in humans. Ibuprofen likely impacts the physiology ofP. megateriumon several levels, including spore formation. Taken together,P. megateriumSBUG 518 is well suited as a model organism to study bacterial ibuprofen metabolism..
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Preprint| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
bioRxiv.org - (2024) vom: 22. März Zur Gesamtaufnahme - year:2024 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Hinzke, Tjorven [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| doi: |
10.1101/2024.03.18.585558 |
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XBI042973104 |
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| 245 | 1 | 0 | |a Transformation of the drug ibuprofen by<i>Priestia megaterium</i>: Reversible glycosylation and generation of hydroxylated metabolites |
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| 520 | |a Abstract As one of the most-consumed drugs worldwide, ibuprofen (IBU) reaches the environment in considerable amounts as environmental pollutant, necessitating studies of its further biotransformation as potential removal mechanism. Therefore, we screened bacteria with known capabilities to degrade aromatic environmental pollutants, belonging to the generaBacillus,Priestia(formerly alsoBacillus)Paenibacillus,Mycobacterium, andCupriavidus, for their ability to transform ibuprofen. We identified five transformation products, namely 2-hydroxyibuprofen, carboxyibuprofen, ibuprofen pyranoside, 2-hydroxyibuprofen pyranoside, and 4-carboxy-α-methylbenzene-acetic acid. Based on our screening results, we focused on ibuprofen biotransformation byPriestia megateriumSBUG 518 with regard to structure of transformation products and bacterial physiology. Biotransformation reactions by P. megaterium involved (A) the hydroxylation of the isobutyl side chain at two positions, and (B) conjugate formation via esterification with a sugar molecule of the carboxylic group of ibuprofen and an ibuprofen hydroxylation product. Glycosylation seems to be a detoxification process, since the ibuprofen conjugate (ibuprofen pyranoside) was considerably less toxic than the parent compound toP. megateriumSBUG 518. Based on proteome profile changes and inhibition assays, cytochrome P450 systems are likely crucial for ibuprofen transformation inP. megateriumSBUG 518. The toxic effect of ibuprofen appears to be caused by interference of the drug with different physiological pathways, including especially sporulation, as well as amino acid and fatty acid metabolism.Importance Ibuprofen is a highly consumed drug, and, as it reaches the environment in high quantities, also an environmental pollutant. It is therefore of great interest how microorganisms transform this drug and react to it. Here, we screened several bacteria for their ability to transform ibuprofen.Priestia megateriumSBUG 518 emerged as highly capable and was therefore studied in greater detail. We show thatP. megateriumtransforms ibuprofen via two main pathways, hydrolyzation and reversible conjugation. These pathways bear resemblance to those in humans. Ibuprofen likely impacts the physiology ofP. megateriumon several levels, including spore formation. Taken together,P. megateriumSBUG 518 is well suited as a model organism to study bacterial ibuprofen metabolism. | ||
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| 700 | 1 | |a Schlüter, Rabea |4 aut | |
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| 700 | 1 | |a Müller, Patrick |4 aut | |
| 700 | 1 | |a Riedel, Katharina |4 aut | |
| 700 | 1 | |a Lalk, Michael |4 aut | |
| 700 | 1 | |a Becher, Dörte |4 aut | |
| 700 | 1 | |a Sheikhany, Halah |4 aut | |
| 700 | 1 | |a Schauer, Frieder |4 aut | |
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